Browsing by Author "Pehlivan, Hamza"
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Item Restricted Geçmişten günümüze Cumhuriyet'in ilk diş hekimliği fakültesi: Ankara Üniversitesi Diş Hekimliği Fakültesi(Bilkent University, 2019) Dinçer, Alara; Ongan, Seda; Özalp, Emre; Pehlivan, Hamza; Bulut, EmreAnkara Üniversitesi Diş Hekimliği Fakültesi, 1964’te yüksekokul olarak başlamıştır ve 1974’te bir fakülte olarak varlığını tam anlamıyla kanıtlamıştır. Bu yazıdaki temel amaç, Ankara Üniversitesi Diş Hekimliği Fakültesi’nin kuruluş sürecini belirlenen kaynaklar doğrultusunda geniş çaplı analiz etmek, kurulduktan sonra günümüze kadar hangi türlerde değişiklikler geçirdiğini öğrenmek ve günümüz ile geçmiş arasında nasıl bir bağ olduğunu tespit etmektir.Item Open Access Real image editing with StyleGAN(Bilkent University, 2023-09) Pehlivan, HamzaWe present a novel image inversion framework and a training pipeline to achieve high-fidelity image inversion with high-quality attribute editing. Inverting real images into StyleGAN’s latent space is an extensively studied problem, yet the trade-off between image reconstruction fidelity and image editing quality remains an open challenge. The low-rate latent spaces are limited in their expressiveness power for high-fidelity reconstruction. On the other hand, high-rate latent spaces result in degradation in editing quality. In this work, to achieve high-fidelity inversion, we learn residual features in higher latent codes that lower latent codes were not able to encode. This enables preserving image details in reconstruction. To achieve high-quality editing, we learn how to transform the residual features for adapting to manipulations in latent codes. We train the framework to extract residual features and transform them via a novel architecture pipeline and cycle consistency losses. We run extensive experiments and compare our method with state-of-the-art inversion methods. Qualitative metrics and visual comparisons show significant improvements.Item Open Access StyleRes: transforming the residuals for real ımage editing with StyleGAN(IEEE, 2023-07-22) Pehlivan, Hamza; Dalva, Yusuf; Dündar, AysegülWe present a novel image inversion framework and a training pipeline to achieve high-fidelity image inversion with high-quality attribute editing. Inverting real images into StyleGAN’s latent space is an extensively studied problem, yet the trade-off between the image reconstruction fidelity and image editing quality remains an open challenge. The low-rate latent spaces are limited in their expressiveness power for high-fidelity reconstruction. On the other hand, high-rate latent spaces result in degradation in editing quality. In this work, to achieve high-fidelity inversion, we learn residual features in higher latent codes that lower latent codes were not able to encode. This enables preserving image details in reconstruction. To achieve high-quality editing, we learn how to transform the residual features for adapting to manipulations in latent codes. We train the framework to extract residual features and transform them via a novel architecture pipeline and cycle consistency losses. We run extensive experiments and compare our method with state-of-the-art inversion methods. Qualitative metrics and visual comparisons show significant improvements. Code: https://github.com/hamzapehlivan/StyleRes